Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Optimal Process Condition and Blowing of Thermoplastic Polyester Film using Thermally Expandable Microcapsule

열팽창 캡슐을 적용한 발포 폴리에스테르 필름의 최적 공정 조건 및 발포 특성

  • Bak, A Ram (Department of Organic Material Science and Engineering, Pusan National University) ;
  • Park, Jung Hyun (Department of Clothing and Textiles, Pusan National University) ;
  • Lee, Seung Geol (Department of Organic Material Science and Engineering, Pusan National University)
  • 박아람 (부산대학교 유기소재시스템공학과) ;
  • 박정현 (부산대학교 의류학과) ;
  • 이승걸 (부산대학교 유기소재시스템공학과)
  • Received : 2019.09.05
  • Accepted : 2019.09.15
  • Published : 2019.09.27
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Abstract

Blowing film was prepared using polyester elastomer with thermally expandable microcapsule to investigate the optimum blowing properties and the film making process. Physical properties including specific gravity, blowing efficiency, foaming shape, tensile strength and elongation of polyester film were tested by varying the process condition of temperature and revolution per minutes of the extruder. The lowest specific gravity of 0.709 can be achieved with excellent foaming cells at $210^{\circ}C$ and 50 RPM conditions. The highest tensile strength and elongation was shown at $210^{\circ}C$, 100 RPM and $230^{\circ}C$, 25 RPM conditions. However, most of the prepared polyester films showed over $1kg_f/mm^2$ of tensile strength which is reasonable value to use in film applications.

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References

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